/* Self-hosted Inter (SIL OFL, see /fonts/OFL.txt) */
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url('/fonts/inter-latin-var.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url('/fonts/inter-latin-ext-var.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

:root {
  color-scheme: light;
  --bg: #f4f5fb;
  --surface: #ffffff;
  --surface-2: #f7f8fc;
  --surface-3: #eef0f8;
  --text: #0f172a;
  --text-muted: #5b6577;
  --border: #e3e6f0;
  --border-strong: #cfd4e3;
  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --primary-soft: #eef0ff;
  --primary-text: #ffffff;
  --success: #047857;
  --success-soft: #e7f8f1;
  --danger: #c81e1e;
  --danger-soft: #fdecec;
  --warning: #92400e;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, .06);
  --shadow: 0 1px 3px rgba(15, 23, 42, .06), 0 8px 24px rgba(15, 23, 42, .06);
  --shadow-lg: 0 20px 50px rgba(30, 27, 75, .12);
  --radius: 14px;
  --radius-sm: 10px;
  --ring: 0 0 0 4px rgba(79, 70, 229, .15);
}

/* color-scheme makes native scrollbars, select menus and autofill match the theme */
[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0b0d17;
  --surface: #131625;
  --surface-2: #181c2e;
  --surface-3: #1f2438;
  --text: #e6e8f2;
  --text-muted: #9097b1;
  --border: #262b42;
  --border-strong: #343a56;
  --primary: #818cf8;
  --primary-hover: #9aa3fb;
  --primary-soft: rgba(129, 140, 248, .14);
  --primary-text: #0b0d17;
  --success: #34d399;
  --success-soft: rgba(52, 211, 153, .12);
  --danger: #f87171;
  --danger-soft: rgba(248, 113, 113, .12);
  --warning: #fbbf24;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, .4);
  --shadow: 0 1px 3px rgba(0, 0, 0, .4), 0 8px 24px rgba(0, 0, 0, .25);
  --shadow-lg: 0 20px 50px rgba(0, 0, 0, .45);
  --ring: 0 0 0 4px rgba(129, 140, 248, .22);
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  line-height: 1.5;
}

h1, h2, h3 { margin: 0; letter-spacing: -0.02em; text-wrap: balance; }
h1 { font-size: 28px; font-weight: 800; }
h2 { font-size: 18px; font-weight: 700; }
h3 { font-size: 15px; font-weight: 700; }
p { margin: 0; text-wrap: pretty; }
.muted { color: var(--text-muted); }
.hidden { display: none !important; }
.sr-only { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip-link {
  position: fixed; left: 16px; top: -64px; z-index: 200; padding: 10px 16px; border-radius: var(--radius-sm);
  background: var(--primary); color: var(--primary-text); font-weight: 600; text-decoration: none; transition: top .15s;
}
.skip-link:focus { top: 12px; outline: none; box-shadow: var(--ring); }
:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
[tabindex="-1"]:focus { outline: none; }

label { display: block; margin: 0 0 6px; font-weight: 600; font-size: 13px; color: var(--text-muted); }
input, select, button { font: inherit; color: var(--text); }
input, select {
  width: 100%;
  height: 42px;
  padding: 0 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  transition: border-color .15s, box-shadow .15s;
  font-size: 14px;
}
input::placeholder { color: var(--text-muted); opacity: .7; }
input:focus, select:focus { outline: none; border-color: var(--primary); box-shadow: var(--ring); }
input[aria-invalid="true"] { border-color: var(--danger); }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 42px; padding: 0 16px;
  border: 1px solid transparent; border-radius: var(--radius-sm);
  background: var(--primary); color: var(--primary-text);
  font-weight: 600; font-size: 14px; cursor: pointer; white-space: nowrap;
  text-decoration: none;
  transition: background .15s, transform .05s, box-shadow .15s, border-color .15s;
}
.btn:hover { background: var(--primary-hover); }
.btn:active { transform: translateY(1px); }
.btn:focus-visible { outline: none; box-shadow: var(--ring); }
.btn:disabled { opacity: .55; cursor: not-allowed; }
.btn svg { width: 18px; height: 18px; flex: none; }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--border); }
.btn-ghost:hover { background: var(--surface-3); }
.btn-soft { background: var(--primary-soft); color: var(--primary); }
.btn-soft:hover { background: var(--primary-soft); filter: brightness(.97); }
.btn-danger { background: transparent; color: var(--danger); border-color: var(--border); }
.btn-danger:hover { background: var(--danger-soft); border-color: transparent; }
.btn-sm { height: 34px; padding: 0 12px; font-size: 13px; }
.btn-icon { width: 42px; padding: 0; }
.btn-icon.btn-sm { width: 34px; }
.btn-block { width: 100%; }

.auth-page { min-height: 100vh; }
.auth-panel { display: flex; flex-direction: column; min-height: 100vh; padding: 24px 32px; }
.auth-panel .topbar { display: flex; justify-content: flex-end; }
.auth-card { margin: auto; width: 100%; max-width: 360px; padding: 24px 0 48px; }
.auth-card > .brand-mark { width: 44px; height: 44px; border-radius: 12px; margin: 0 auto 16px; }
.auth-card > .brand-mark svg { width: 28px; height: 28px; }
.auth-card h1 { font-size: 22px; text-align: center; margin-bottom: 24px; }
.auth-card .lead { color: var(--text-muted); font-size: 14px; text-align: center; margin: -16px 0 24px; }
.oauth-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.google-btn {
  display: flex; align-items: center; justify-content: center; gap: 10px;
  height: 44px; border-radius: 12px;
  border: 1px solid var(--border-strong); background: var(--surface);
  color: var(--text); font-weight: 600; font-size: 14px; text-decoration: none;
  transition: border-color .15s, transform .05s;
}
.google-btn:hover { border-color: var(--primary); }
.google-btn:focus-visible { outline: none; border-color: var(--primary); box-shadow: var(--ring); }
.google-btn:active { transform: translateY(1px); }
.google-btn svg { width: 18px; height: 18px; }
.alert { margin-top: 16px; padding: 12px 14px; border-radius: 12px; font-size: 14px; background: var(--danger-soft); color: var(--danger); }
.alert:empty { display: none; }
.auth-hint { margin-top: 20px; text-align: center; font-size: 13px; color: var(--text-muted); }
.auth-hint + .auth-hint { margin-top: 6px; }
.auth-hint:empty { display: none; }
.auth-form .field { margin-bottom: 14px; }
.auth-form .btn { height: 44px; margin-top: 4px; }
.field-hint { margin-top: 6px; font-size: 12px; color: var(--text-muted); }
.auth-divider {
  display: flex; align-items: center; gap: 12px;
  margin: 20px 0; font-size: 13px; color: var(--text-muted);
}
.auth-divider::before, .auth-divider::after { content: ""; flex: 1; height: 1px; background: var(--border); }
.auth-account { margin: -12px 0 24px; text-align: center; font-size: 14px; color: var(--text-muted); overflow-wrap: anywhere; }
.auth-account:empty { display: none; }

.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; font-size: 17px; letter-spacing: -0.01em; position: relative; z-index: 1; }
.brand-mark {
  display: grid; place-items: center; width: 34px; height: 34px; border-radius: 10px;
  background: var(--primary); color: var(--primary-text);
}
.brand-mark svg { width: 22px; height: 22px; }

.notfound-page { display: flex; flex-direction: column; min-height: 100vh; padding: 24px 32px; }
.notfound-top { display: flex; align-items: center; justify-content: space-between; }
.notfound-top .brand { color: var(--text); text-decoration: none; }
.notfound-card { margin: auto; width: 100%; max-width: 440px; text-align: center; padding: 48px 0; }
.notfound-code {
  font-size: 96px; font-weight: 800; line-height: 1; letter-spacing: -0.04em; margin-bottom: 12px;
  color: var(--primary); font-variant-numeric: tabular-nums;
}
.notfound-card .lead { color: var(--text-muted); margin: 10px 0 28px; }
.notfound-actions { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }

.app-header {
  position: sticky; top: 0; z-index: 20;
  background: color-mix(in srgb, var(--surface) 80%, transparent);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--border);
}
.app-header-inner { max-width: 1280px; margin: 0 auto; padding: 10px 24px; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 16px; }
.app-nav { justify-self: center; }
.header-actions { display: flex; align-items: center; justify-content: flex-end; gap: 8px; }
.user-chip {
  display: flex; align-items: center; gap: 10px; height: 42px; padding: 4px 14px 4px 4px;
  border: 1px solid var(--border); border-radius: 999px; background: var(--surface); cursor: pointer;
  transition: border-color .15s;
}
.user-chip:hover { border-color: var(--border-strong); }
.user-chip:focus-visible { outline: none; box-shadow: var(--ring); }
.user-name { font-size: 13px; max-width: 160px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.avatar {
  display: grid; place-items: center; width: 32px; height: 32px; border-radius: 50%; flex: none;
  background: var(--primary); color: var(--primary-text);
  font-weight: 700; font-size: 13px;
}
.avatar-lg { width: 56px; height: 56px; font-size: 22px; }

.app-main { width: 100%; max-width: 1280px; margin: 0 auto; padding: 24px 24px 48px; }

.tabs { display: inline-flex; gap: 4px; padding: 4px; background: var(--surface); border: 1px solid var(--border); border-radius: 12px; box-shadow: var(--shadow-sm); }
.tab {
  display: inline-flex; align-items: center; gap: 8px;
  height: 36px; padding: 0 14px; border: 0; border-radius: 8px;
  background: transparent; color: var(--text-muted); font-weight: 600; font-size: 14px; cursor: pointer;
  text-decoration: none; transition: background .15s, color .15s;
}
.tab svg { width: 16px; height: 16px; flex: none; }
.tab:hover { color: var(--text); }
.tab:focus-visible { outline: none; box-shadow: var(--ring); }
.tab.active { background: var(--primary-soft); color: var(--primary); }

.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); }
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 18px 20px; border-bottom: 1px solid var(--border); flex-wrap: wrap; }
.card-head p { font-size: 13px; color: var(--text-muted); margin-top: 2px; }
.card-body { padding: 20px; }
.card-foot { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 16px 20px; border-top: 1px solid var(--border); background: var(--surface-2); border-radius: 0 0 var(--radius) var(--radius); flex-wrap: wrap; }

.card-head h2.h-sm { font-size: 15px; }
.layout-split { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 20px; align-items: start; }
.stack { display: grid; gap: 20px; }
.view-cumulative { display: grid; gap: 20px; }
.term-name-field { flex: 1; min-width: 200px; max-width: 320px; }
.scale-field { flex: none; width: 220px; }
.scale-panel-select { margin-bottom: 8px; height: 38px; }
.stat.stat-accent { background: var(--primary); color: var(--primary-text); border-color: transparent; }
.stat.stat-accent .stat-label { color: inherit; opacity: .85; }
.save-row { flex-wrap: nowrap; }
.save-row input { flex: 1; min-width: 0; }

.panel-scroll:focus-visible { outline: none; box-shadow: inset var(--ring); }

/* Desktop fits the window, lists scroll in their panel; short windows scroll normally */
@media (min-width: 961px) and (min-height: 700px) {
  .app-body { height: 100vh; height: 100dvh; display: flex; flex-direction: column; overflow: hidden; }
  .app-body .app-main { flex: 1; min-height: 0; display: flex; flex-direction: column; padding-bottom: 24px; }
  .view { flex: 1; min-height: 0; }
  .view.layout-split { grid-template-rows: minmax(0, 1fr); align-items: stretch; }
  .view-cumulative { grid-template-rows: auto minmax(0, 1fr); }
  .panel { display: flex; flex-direction: column; min-height: 0; }
  .panel > .card-head, .panel > .card-foot { flex: none; }
  .panel-scroll { flex: 1; min-height: 0; overflow-y: auto; }
  .side-col { min-height: 0; overflow-y: auto; align-content: start; }
  .app-main .view-history { grid-template-rows: minmax(0, 1fr); align-items: stretch; }
  /* The scale fills the view's height; only the term cards scroll */
  .view-history .scale-panel { position: static; overflow-y: auto; }
  .history-main { display: flex; flex-direction: column; min-height: 0; }
  .history-scroll { flex: 1; min-height: 0; overflow-y: auto; padding: 4px; margin: -4px; }
  .view-settings { overflow-y: auto; }
}

.stat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.stat { padding: 16px; border-radius: 12px; background: var(--surface-2); border: 1px solid var(--border); }
.stat-label { font-size: 12px; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: .04em; }
.stat-value { font-size: 26px; font-weight: 800; letter-spacing: -0.02em; margin-top: 4px; font-variant-numeric: tabular-nums; }

.gpa-hero {
  padding: 22px; border-radius: var(--radius);
  background: var(--primary); color: var(--primary-text); box-shadow: var(--shadow);
}
.gpa-hero .stat-label { color: inherit; opacity: .85; }
.gpa-hero .gpa-number { font-size: 48px; font-weight: 800; letter-spacing: -0.03em; line-height: 1.1; margin: 6px 0 4px; font-variant-numeric: tabular-nums; }
.gpa-hero .gpa-sub { font-size: 13px; opacity: .85; }
.gpa-hero .stat-grid { grid-template-columns: 1fr 1fr; margin-top: 18px; }
.gpa-hero .stat { background: color-mix(in srgb, currentColor 12%, transparent); border-color: color-mix(in srgb, currentColor 18%, transparent); padding: 12px; }
.gpa-hero .stat-value { font-size: 20px; }

/* History: the grading scale sits to the left of the saved terms, always open */
.view-history { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: 20px; align-items: start; }
.scale-panel { position: sticky; top: 88px; }
.scale-panel .card-body { padding-top: 10px; padding-bottom: 12px; }
.scale-list { display: grid; grid-template-columns: 1fr; gap: 0; font-size: 13px; font-variant-numeric: tabular-nums; }
.scale-list div { display: flex; justify-content: space-between; padding: 5px 0; }
.scale-list span:last-child { color: var(--text-muted); }

.table-wrap { overflow-x: auto; }
.table { width: 100%; border-collapse: separate; border-spacing: 0; }
.table th { text-align: left; font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: .04em; color: var(--text-muted); padding: 10px 12px; border-bottom: 1px solid var(--border); background: var(--surface-2); }
.table th:first-child { border-top-left-radius: 10px; }
.table th:last-child { border-top-right-radius: 10px; }
.table td { padding: 10px 12px; border-bottom: 1px solid var(--border); font-size: 14px; vertical-align: middle; }
.table tbody tr:last-child td { border-bottom: 0; }
.table td input, .table td select { height: 38px; }
.table .num { text-align: right; font-variant-numeric: tabular-nums; }
.course-table td:first-child { padding-left: 0; }
.course-table td:last-child { padding-right: 0; width: 48px; }
.course-table th:first-child { padding-left: 12px; }
.empty-row td { text-align: center; color: var(--text-muted); padding: 22px; }

.course-table .col-code { width: 116px; }

.course-row-index { color: var(--text-muted); font-size: 12px; font-weight: 600; width: 28px; text-align: center; }

.term-picks { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 10px; }
.term-pick {
  position: relative; display: flex; margin: 0; align-items: center; gap: 12px; padding: 12px 14px;
  border: 1px solid var(--border); border-radius: 12px; background: var(--surface); cursor: pointer;
  color: var(--text); font-size: 14px; font-weight: 400;
  transition: border-color .15s, background .15s;
}
.term-pick:hover { border-color: var(--border-strong); }
.term-pick input { position: absolute; opacity: 0; pointer-events: none; }
.term-pick .check {
  display: grid; place-items: center; width: 20px; height: 20px; flex: none;
  border: 2px solid var(--border-strong); border-radius: 6px; transition: all .15s;
}
.term-pick .check svg { width: 12px; height: 12px; color: var(--primary-text); opacity: 0; }
.term-pick:has(input:checked) { border-color: var(--primary); background: var(--primary-soft); }
.term-pick:has(input:checked) .check { background: var(--primary); border-color: var(--primary); }
.term-pick:has(input:checked) .check svg { opacity: 1; }
.term-pick:has(input:focus-visible) { box-shadow: var(--ring); }
.term-pick-name { font-weight: 600; font-size: 14px; }
.term-pick-meta { font-size: 12px; color: var(--text-muted); font-variant-numeric: tabular-nums; }
.term-picks > :not(.term-pick) { grid-column: 1 / -1; }

.segmented { display: inline-flex; gap: 2px; padding: 3px; border-radius: 10px; background: var(--surface-3); }
.seg {
  height: 32px; padding: 0 12px; border: 0; border-radius: 7px; background: transparent;
  color: var(--text-muted); font-weight: 600; font-size: 13px; cursor: pointer; transition: background .15s, color .15s;
}
.seg:hover { color: var(--text); }
.seg:focus-visible { outline: none; box-shadow: var(--ring); }
.seg.active { background: var(--surface); color: var(--text); box-shadow: var(--shadow-sm); }

.inline-form { display: grid; grid-template-columns: minmax(0, 1fr) 100px 140px auto; gap: 10px; }

.history-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; }
.term-card { display: flex; flex-direction: column; padding: 18px; gap: 14px; transition: box-shadow .15s, border-color .15s; }
.term-card:hover { box-shadow: var(--shadow-lg); border-color: var(--border-strong); }
.term-card-top .chip { flex: none; white-space: nowrap; }
.term-card-top { display: flex; justify-content: space-between; align-items: flex-start; gap: 8px; }
.term-card h3 { font-size: 16px; }
.term-card .date { font-size: 12px; color: var(--text-muted); margin-top: 2px; }
.term-card .gpa-pill { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.term-card .meta { display: flex; gap: 8px; flex-wrap: wrap; font-variant-numeric: tabular-nums; }
.term-card .actions { display: flex; gap: 8px; margin-top: auto; }
.term-card .actions .btn { flex: 1; padding: 0 10px; }
.chip { display: inline-flex; align-items: center; gap: 6px; padding: 3px 10px; border-radius: 999px; background: var(--surface-3); color: var(--text-muted); font-size: 12px; font-weight: 600; }
.chip-primary { background: var(--primary-soft); color: var(--primary); }
.chip-success { background: var(--success-soft); color: var(--success); }
.chip-danger { background: var(--danger-soft); color: var(--danger); }
.chip-warning { background: color-mix(in srgb, var(--warning) 15%, transparent); color: var(--warning); }

.empty-state { text-align: center; padding: 48px 24px; color: var(--text-muted); }
.empty-state .icon { display: grid; place-items: center; width: 56px; height: 56px; margin: 0 auto 14px; border-radius: 16px; background: var(--primary-soft); color: var(--primary); }
.empty-state .icon svg { width: 26px; height: 26px; }
.empty-state h3 { color: var(--text); margin-bottom: 4px; }
.empty-state .btn { margin-top: 16px; }
.empty-state.is-error .icon { background: var(--danger-soft); color: var(--danger); }

/* Skeletons reserve the space of the content they stand in for */
.skeleton { display: block; border-radius: var(--radius-sm); background: var(--surface-3); }
.skeleton-line { display: block; height: 12px; border-radius: 6px; background: var(--surface-3); }
.skeleton-card { min-height: 216px; }
.skeleton-pick { height: 62px; border-radius: 12px; }
.skeleton-row { height: 52px; margin-bottom: 8px; }
.w-30 { width: 30%; } .w-50 { width: 50%; } .w-70 { width: 70%; }
.skeleton-line.lg { height: 24px; }
@media (prefers-reduced-motion: no-preference) {
  .skeleton, .skeleton-line { animation: skeleton-pulse 1.4s ease-in-out infinite; }
}
@keyframes skeleton-pulse { 50% { opacity: .5; } }

.note { font-size: 14px; color: var(--text-muted); }
.note-sm { font-size: 12px; color: var(--text-muted); }
.calc-msg { font-size: 13px; color: var(--text-muted); }
.btn-row { display: flex; gap: 8px; }
.add-row-btn { margin-top: 14px; }
.table-wrap.spaced { margin-top: 16px; }
.col-index { width: 28px; } .col-units { width: 120px; } .col-grade { width: 150px; } .col-action { width: 48px; }

.editing-banner { display: flex; align-items: center; gap: 10px; padding: 10px 14px; margin-bottom: 16px; border-radius: 12px; background: color-mix(in srgb, var(--warning) 12%, transparent); color: var(--warning); font-size: 14px; font-weight: 600; }

.settings-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; max-width: 960px; margin: 0 auto; align-items: start; }
/* Password sits in the right column so Grading system lands directly under Account */
.settings-grid > #passwordForm { grid-column: 2; grid-row: 1 / span 2; }
.account-head { display: flex; align-items: center; gap: 14px; margin-bottom: 18px; }
.account-head strong { display: block; font-size: 16px; }
.account-head span:not(.avatar) { font-size: 13px; color: var(--text-muted); }
.account-list { display: grid; margin: 0; }
.account-list div { display: flex; justify-content: space-between; gap: 16px; padding: 12px 0; border-top: 1px solid var(--border); font-size: 14px; }
.account-list dt { color: var(--text-muted); font-weight: 600; flex: none; }
.account-list dd { margin: 0; text-align: right; overflow-wrap: anywhere; }
.auth-form .alert { margin-top: 0; }

.toast-stack { position: fixed; right: 20px; bottom: 20px; display: grid; gap: 10px; z-index: 100; }
.toast {
  display: flex; align-items: center; gap: 10px; min-width: 240px; max-width: 360px;
  padding: 12px 16px; border-radius: 12px; background: var(--text); color: var(--bg);
  box-shadow: var(--shadow-lg); font-size: 14px; font-weight: 500;
  animation: toast-in .2s ease-out;
}
.toast.success::before, .toast.error::before { content: ''; width: 8px; height: 8px; border-radius: 50%; flex: none; }
.toast.success::before { background: var(--success); }
.toast.error::before { background: var(--danger); }
.toast span { flex: 1; }
.toast-close {
  display: grid; place-items: center; width: 28px; height: 28px; margin: -4px -8px -4px 0; flex: none;
  border: 0; border-radius: 8px; background: transparent; color: inherit; opacity: .7; cursor: pointer;
}
.toast-close:hover { opacity: 1; }
.toast-close svg { width: 16px; height: 16px; }
@keyframes toast-in { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

.dialog {
  width: min(400px, calc(100vw - 32px)); padding: 0; border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--surface); color: var(--text); box-shadow: var(--shadow-lg);
}
.dialog::backdrop { background: rgba(11, 13, 23, .5); backdrop-filter: blur(2px); }
.dialog[open] { animation: dialog-in .15s ease-out; }
.dialog-body { padding: 22px 22px 8px; }
.dialog-body p { margin-top: 6px; font-size: 14px; color: var(--text-muted); overflow-wrap: anywhere; }
.dialog-actions { display: flex; justify-content: flex-end; gap: 8px; padding: 16px 22px 20px; }
/* primary-text flips per theme, so the label keeps contrast on either red */
.btn-danger-solid { background: var(--danger); color: var(--primary-text); }
.btn-danger-solid:hover { background: var(--danger); filter: brightness(.92); }
@keyframes dialog-in { from { opacity: 0; transform: translateY(6px) scale(.98); } to { opacity: 1; transform: none; } }

@media (max-width: 1100px) {
  .user-name { display: none; }
  .user-chip { padding: 4px; }
}
@media (max-width: 960px) {
  .layout-split { grid-template-columns: 1fr; }
  .app-main .view-history { grid-template-columns: 1fr; }
  .view-history .scale-panel { position: static; order: 1; }
  .app-header-inner { grid-template-columns: auto 1fr auto; }
  .brand-name { display: none; }
}
@media (max-width: 760px) {
  .settings-grid { grid-template-columns: 1fr; }
  .settings-grid > #passwordForm { grid-column: auto; grid-row: auto; }
}
@media (max-width: 640px) {
  /* Under 16px, iOS Safari zooms the page whenever a field gets focus */
  input, select { font-size: 16px; }
  .app-header-inner, .app-main { padding-left: 16px; padding-right: 16px; }
  .app-header-inner { grid-template-columns: 1fr auto; }
  .brand-name { display: inline; }
  /* A backdrop-filter would make the header the containing block of the fixed bottom bar */
  .app-header { backdrop-filter: none; background: color-mix(in srgb, var(--surface) 94%, transparent); }
  .app-main { padding-top: 16px; padding-bottom: calc(96px + env(safe-area-inset-bottom)); }
  .app-nav {
    position: fixed; left: 0; right: 0; bottom: 0; z-index: 30; justify-self: stretch;
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 4px;
    padding: 6px 8px calc(6px + env(safe-area-inset-bottom));
    border: 0; border-top: 1px solid var(--border); border-radius: 0; box-shadow: 0 -4px 20px rgba(15, 23, 42, .06);
    background: color-mix(in srgb, var(--surface) 88%, transparent);
    backdrop-filter: saturate(180%) blur(12px);
  }
  .app-nav .tab { flex-direction: column; justify-content: center; gap: 3px; height: 52px; padding: 0 4px; font-size: 11px; border-radius: 10px; }
  .app-nav .tab svg { width: 20px; height: 20px; }
  .toast-stack { left: 16px; right: 16px; bottom: calc(80px + env(safe-area-inset-bottom)); }
  .toast { min-width: 0; max-width: none; }
  .stat-grid { grid-template-columns: 1fr 1fr; }
  .stat-accent { grid-column: 1 / -1; }
  .term-name-field { max-width: none; min-width: 0; flex-basis: 100%; }
  .scale-field { width: 100%; }
  .segmented { width: 100%; }
  .seg { flex: 1; }
  .inline-form { grid-template-columns: 1fr 1fr; }
  .inline-form > :first-child { grid-column: 1 / -1; }
  .inline-form > .btn { grid-column: 1 / -1; }
  .auth-panel { padding: 16px; }
  .notfound-page { padding: 20px 16px; }
  .notfound-code { font-size: 72px; }
  .course-table thead { display: none; }
  .course-table, .course-table tbody, .course-table tr, .course-table td { display: block; width: 100%; }
  .course-table tr { display: grid; grid-template-columns: 96px minmax(0, 1fr) 42px; gap: 8px; padding: 10px 0; border-bottom: 1px solid var(--border); }
  .course-table td { padding: 0 !important; border: 0; }
  .course-table td:last-child { width: auto; }
  .course-table td.course-row-index { display: none; }
  .course-table td.col-code { width: auto; }
  /* Row 1: code + course name; row 2: units, grade, remove */
  .course-table td:nth-child(3) { grid-column: 2 / -1; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
}